Extra-high voltage alternating-current synchronous networking channel flow transfer ratio simulation analysis method

The invention provides an extra-high voltage alternating-current synchronous networking channel flow transfer ratio simulation analysis method which is applicable after an extra-high voltage direct current is put in. According to a two-region networking channel power fluctuation mechanism caused by power vacancy, significant influence factors of the alternating-current synchronous networking channel flow transfer ratio are analyzed, influence characteristics of the factors of the flow transfer ratio are considered comprehensively, and the scientific and reasonable extra-high voltage alternating-current synchronous networking channel flow transfer ratio simulation analysis method which is applicable after the extra-high voltage direct current is put in is made. The flow transfer ratio simulation analysis method provides powerful support for operation mode arrangement and control measure determination of an interconnected electric power system, has the advantages of being strong in practicality, having comprehensive considerations and the like, and has high practical value and good market prospects.